Centrifugal separator and the like



Feb. 26 1924. 1,485,235

w. MAuss I CENTRIFUGAL SEPARATOR AND THE LIKE Filed Sept. 14. 1923 2Sheets-Sheet l jr wenfo'r Feb. 26 19.24.

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W. MAUSS' CENTRIFUGAL SEPARATOR AND THE LIKE Filed Sept. 14 1923 2Sheets-Sheet Patented Feb. 2d, 1924.

- a r I M GENTBIFUGAL SEPA-LBATOR AND THE LIKE.

Application filed September 14, 1923.

To aZZ whom 2'??- may concem:

Be it known that l, 'WILHELM Manes, a subject of the King of GreatBritain. residing in Johannesburg, Union of South Africa, have inventedcertain new and useful Improvements in and Relating to Cen trifugalSeparators and the like, of which the following is a specification.

This invention relates to improvement in continuously rotatingcontinuous separators of the kind described in the specifications ofUnited States Letters Patent Nos. 1,441,732 and 1,419,285.

In Patent No. 1,4192 5, a centrifugal separator is described in whichthe drum consists of a series ot'axially spaced separating chambersbounded by conical walls and separable by toggle mechanism sliding onthe drum shaft structure. The conical walls form peaks between thechambers and on each peak and on the side of the same remote from thefeed pipe, a bafiie is provided having slots beneath it leading to thenext chamber. These battles hold back any frothy floating matter and thepeaks and the overflow lip of the top bafiie are at substantiallythesame radial distance from the axis of the machine.

According to the present invention, the battles are arranged on thesides of the peaks nearest to the feed inlet. Further, the overflow lipon the topchamber is at a less radial distance from the axis of themachine than the peaks of the lower chambers.

This construction presents advantages in the retaining of solids by thebaflles, providing a greater radial depth of liquor and a slower flowover the peaks when the machine is in operation. It also presentsadvantages when the apparatus is used in the displacement processdescribed in U. S. Patent No. 1,4t1,732 above referred. to in which anyliquor in the chambers is washed out by means of a liquid of lighterspecific gravity. Owing to the improved arrangement of the baflies thedisplacing liquid enters practically at the smallest distance possiblefrom the axis 01": the machine, flows on the inner surface of the liquidunder treatment and displaces same toor a little beyond the out-- er lipof the bafiie, so that it the displacing liquid is carefully regulatedthe dilution of the total separated liquor at the top overfiow ordischarge point of the machine is practically nil.

A turther feature of the invention con- Selial No. 652,702.

sists in the method of mounting the drum sections and the battles. Inthis method, the top baffle ring and the top drum section are fixed tocylinder which is slidably mount ed on a central driving shaft andoperated by means of toggle mechanism. The re maining baille rings eachcarry a drum section and are freely slidable on the cylinder, thecylinder being of different diameter for each ring and having a shoulderformed thereon adapted to raise the battle and drum section when saidcylinder is raised. The drum is closed by a fixed bottom section. Theshoulders on the cylinder are so spaced and arranged as to raise thebaffle rings and drum sections to cause an opening of the drum sectionswhen the cylinder is raised by the toggle mechanism. 7

' The baffles are in the form of solid rings or discs havingbossesthereon which form openings between the peaks of the 'drum' sections andthe baffles so that no liquor can 7 stood it will'now be described byreference to the accompanying drawings, in which:

Fig. l is a sectional elevation of a separator constructed accordingtothe invention,

the separator chambers being closed, and

Fig. 2 is a similar view shewing the chambers open. r

Fig. 3 is a sectional view of the inner portion of the apparatus,showing themechanism for opening and closing the chambers.

As shewn the drum comprises the separate rings 1 and fixed bottom ring 2forming a series of chambers bounded by conical walls. The rings 1 areeach mounted on baflie rings 3 slidable on a cylinder 4:, the cylinderbeing slidable on a central driving shaft structure 5, by togglemechanism 6 operated by a rod 7 The top ring 1 is of a slightlydifferent shape and is secured to the cylinder '41:, a separate baflie 1being attached to the cylinder below the ring first mentioned.

The use of the battle 1" is optional. The toggle levers 6 are eachpivoted at 59 to a guide ring 51 secured to a boss 52' carried by theshaft 5. The lower ends of the toggles are pivoted at 53 to a ring 54:secured to the bottom of the cylinder, said ring being slidable overguide ring 55 on the bottom hearing. The shaft 5 is rotated by powerapplied to the pulley 5 and rotates the drum and cylinder. If the rod 7is raised by suit able means the toggles 6 are operated and raise thecylinder from the bottom, the ring 51 being a slidin lit with thecylinder.

vVhen the red I is lowered, the cylinder is also lowered. The cylinder tis of a different diameter for each ring 3 and is provided Withshoulders 8 arranged one below each ring 3 and so spaced that when thecylinder is raised by the toggle mechanism 6 as above described, therings 1 and 3 will be raised and, the chambers formed by the rings 1will be opened. lVhe-n the cylinder is lowered the rings also slide downand close the chambers.

The bafiie rings 3 are attached to the peaks 9 formed between thechambers and on the sides of the peaks nearest the feed inlet 10 and arein the form of solid rings spaced away from the Walls of the chamber bybosses through which the securing bolts 11 pass, passages. 12 being thusformed between the chamber wall and the baflle. In the con structionillustrated all the chambers are intended to retain the lighter materialin the; section of the chamber Within the radial limits of the battlerings. The overflow lip b. on the top chamber is at a less. radialdistance: from the axis of the machine than the other peaks, providing agreater radial depth of liquid and slower flow over the lower peaks.

The drum is mounted in a receiyer 1a having a discharge opening 15- forsolids at the bottom and an annular passage 16. and discharge outlet 17for the separated liquor at the top.

The operation of the apparatus is as previously described. in theaforesaid: U. S. patents to which referencemay be had.

Fig. 2 shews the apparatus with the separator chambers opened fordischarge of solids.

Having thus. described the nature of my said, invention and the best:means. I know of carrying the same into practical effect, I claim 1. Ina centrifugal decanter, a drum composed, of sections forming betweenthem V.-sectioned settlement chambers separated by peaks and axiallyseparable to discharge solids from said chambers, said drum ha=.v ing aninlet and :1 liquid overflow remote from said inlet, and battlesarranged on the sides of the peaks nearest to the inlet of theapparatus.

2. In a centrifugal decanter, a drum composed of sections formingbetween them V-sectioned settlement chambers separated by peaks and.axially separable to discharge solids from said chambers, said drumhaving an inlet and a liquid overflow remote from said inlet, battlesarranged on the sides of the peaks nearest to the feed inlet of theapparatus, the top chamber having an overflow lip at a less radial.distance from the axis of the machine than the peaks of the lowerchambers.

3. In a centrifugal decanter, a drum com-- posed of sections formingbetween them V-scctioned se tlement chambers separated cylinder, meanson which said cylinder is shdable, a drum surrounding said cylinder andcomposed of sections forming between them V-sectioned settlementchambers separated by peaks and axially separable to discharge solidsfrom said chambers, said drum having an inlet and a liquid overflowremote from the inlet, bafile rings secured in spaced relation to thesides of the peaks nearest to the feed inlet of the apparatus andslidably mounted on said cylinder.

5-. In a centrifugal decanter, a central cylinder, a drum surroundingsaid cylinder and composed of sections forming between them V-sectioned,settlement chambersseparated" by peaks and axially separable todischarge solids from said" chambers, said drum having an inlet and aliquid overflow remote" from. saidinlet, the uppermost chamber having anoverflow lip at a less radial distancefrom the axis of said cylinderthan the peaks of the lower chambers, bafile rings secured to the sidesof the peaks nearest to the feed inlet of the apparatus and slidablymounted on said cylinder. said bafiierings being spaced. from. the peaksof said chambers With which they are respectively associated.

6. In a centrifugal decanter, a central cylinder, a drum surroundingsaid cylinder and composed of sections formingbetween them v-sectionedsettlement chambers separated by peaks and axially separable todischarge solids from said chambers, said drum having an inlet and aliquid overflow remote from said inlet, bafiie' rings secured to thesides of the peaks nearest to the feed inlet of the apparatus andslidably' mounted on said cylinder, a top drum section tired to thecylinder and means on which the cylinder is slidable;

7. In a centrifugal decanter, a central cylinder having a plurality ofshoulders on its periphery, a drum surrounding said cylinder andcomposed of sections forming between them V-sectioned settlementchambers separated by peaks and axially separable to discharge solidsfrom said chambers, said drum having an inlet and a liquid overflowremote from said inlet, bafile rings secured to the sides of the peaksnearest to the feed inlet of the apparatus and respectively slidablymounted on said cylinder above said shoulders, at top drum section fixedto the cylinder and means on which said cylinder is mounted to slide.

8. In a centrifugal decanter, a central cylinder having a plurality ofshoulders on its eri herv and bein of lar er external v D b diameterbelow each of said shoulders, a drum surrounding said cylinder andcomposed of sections forming between them V- sectioned settlementchambers separated by peaks, said sections being axially separable todischarge solids from said chambers, said drum having an inlet and aliquid overflow remote from said outlet, a bafiic ring secured to theside of each of said peaks which is nearest to the feed inlet of theapparatus, said baflle rings being slidably mounted, respectively onsaid cylinder above said shoulders, a top drum section fixed to thecylinder, means on which the cylinder is slidable, the top chamberhaving an overflow lip at a less radial distance from the axis of saidcylinder than the peaks of the lowerchambers.

9. In a centrifugal decanter, a central cylinder, a drum surroundingsaid cylinder and composed of sections forming between them V-sectionedsettlement chambers separated by peaks,said sections being axiallyseparable to discharge solids from said chamber, said drum having aninlet and a liquid overflow remote from said inlet, the top drum sectionbeing fixed to the cylinder, a baflle on the cylinder on the side of thepeak of said chamber nearest to the inlet of the apparatus, bafile ringssecured to the peaks of the lower chambers on the sides of the latternearest to the inlet and slidably mounted on the cylinder and means onwhich the cylinder is slidable. In testimony whereof I have signed myname to this specification,

WILHELM MAUSS.

